Below we cover the best deals from mobile phone providers across prepaid and monthly plans. The offers we think deliver the best value are our Deals of the Month!
This month we cover deals from:
- Deals of Month: Kogan
- 2degrees
- Kiwi Mobile
- Mighty Mobile
- One NZ
- Rocket Mobile
- Skinny
- Spark
- Warehouse Mobile
Deals of the Month: Kogan
Kogan has great deals across two of its 365-day plans. There is 40% off each, but you do need to pay the total price upfront:
- $198: 180GB 356-day plan (equivalent to $16.50 for 15GB per calendar month) + unlimited NZ/OZ calls & texts (usual price $330)
- $294: 384GB 356-day plan (equivalent to $24.50 for 32GB per calendar month) + unlimited NZ/OZ calls & texts (usual price $490)
2degrees
Currently, 2degrees is only continuing its standard offer: receive a one-off 7.5GB of rollover data if you move your existing number over to a 2degrees monthly or weekly prepaid plan with a data limit.
Kiwi Mobile
For new customers, Kiwi Mobile is offering half price for three months across each of its mobile plans, which charge per day:
- Choice: 5GB plan + unlimited NZ/OZ calls & texts: $0.65 (usual price $1.30 per day, $39.54/m)
- Choice Lite: 1GB + unlimited NZ/OZ calls & texts: $0.295 per day (usual price $0.59 per day, $17.95/m)
Kiwi Mobile is also offering half price for six months across its mobile plans when you add broadband.
Mighty Mobile
Mighty Mobile is offering a 50% discount for six months across two of its prepaid plans:
- $25 Plan: Endless data up to 50Mbps & unlimited calls & texts to NZ/OZ (usual price $50)
- $40 Plan: Endless data (no speed cap) & unlimited calls & texts to NZ/OZ (usual price $80)
Mighty Mobile is also offering its Primate members discounts of 30% across its 365-day plans.
One NZ
One NZ is offering all its prepay customers with plans $17+ a double-data add-on for just $1 per month, until January 20, 2026.
And if you bring your number over to One NZ prepaid, you'll also receive 5GB of free data, which lasts up to 90 days.
Rocket Mobile
Rocket Mobile is offering discounts for six months across two of its plans:
- $35 Plan: Endless data up to 40Mbps & unlimited calls & texts to NZ/OZ (usual price $45)
- $50 Plan: Endless data (no max speed cap) & unlimited calls & texts to NZ/OZ + 5G ready (usual price $75)
Skinny
Skinny is offering double data across all of its $17+ plans, and a one-off 8GB of bonus data if you move your existing number over to a Skinny plan $17+. Note the data is not rollover data.
Spark
Spark is offering 10GB of bonus data across each of your first three plan purchases if you move your existing number over to a Spark prepaid plan. Note the data expires after 90 days.
Spark also offers free data for Spotify music on its prepaid plans, plus Spotify discounts across all its plans, including free Spotify Premium (worth $18.99/m) on its $90/m Unlimited Data plan.
Warehouse Mobile
Warehouse Mobile has three current offers:
- Until January 18, 2026, get free unlimited data between 5pm and 12am.
- If you're a new customer bringing over your number, you'll receive 5GB of free data.
- Free data offers with every third top-up
Phone plan discounts and deals: what to consider
Mobile phone providers are always offering incentives to new customers. However it's important to not get blinded by the initial discount, and to consider the longer-term implications of your phone plan purchase. Points to consider:
Discount length
Is the discount a one-off, or for the length of the plan? Many plans revert to their original price after the initial discount period meaning, in the long run, you could end up paying more than opting for a cheaper plan without an initial discount.
Data, calls and texts
Does the plan meet your needs in terms of its data, calls and text allowances? There's no point buying an expensive endless data plan if you rarely make use of your allowance. Or purchasing a cheap, limited plan that ends up costing you extra in top-up packs.
Check the small print
Mobile phone deals always come with Ts&Cs, and it's important to read them, as they could reveal hidden costs. Also make sure you're familiar with the conditions of your existing phone plan, as switching to another plan, even with the same provider, could incur penalties.
What are the cheapest phone plans?
The cheapest phone plans are no-frills prepaid monthly plans that come with very limited calls, data and text allowances. Here are the cheapest available from the big telco providers:
- 2degrees: $8 Plan: 150MB – 100mins & unlimited texts to NZ/OZ
- Skinny: $8 Plan: 250MB – 100mins & unlimited texts to NZ/OZ
- Warehouse mobile: $9 Plan: 300MB – 100mins & unlimited texts to NZ/OZ
- One NZ: $10 Plan: 250MB – 100mins & unlimited texts to NZ/OZ
- Kogan: $15 Plan: 1.5GB – unlimited calls/texts to NZ/OZ
- Spark: $17 Plan: 750MB – 100 mins & unlimited texts to NZ/OZ
What are the fastest phone plans?
5G phone plans offer the fastest speeds. According to the latest Opensignal Mobile Network Experience Report, the 2degrees network delivers the fastest 5G download/upload speeds:
- 2degrees: 343/32Mbps
- One NZ: 313/25Mbps
- Spark: 262/21Mbps
However, when it comes to reach, One NZ has the widest 5G coverage, sitting just ahead of Spark. Out of 10, each network provider earns the following points for their 5G network coverage:
- One NZ: 3.8/10
- Spark: 3.7/10
- 2degrees: 3.0/10
Providers that offer 5G across their plans, include:
- 2degrees
- Kiwi Mobile (uses One NZ network)
- Kogan Mobile (uses One NZ network)
- Mighty Mobile (uses One NZ network)
- One NZ
- Rocket Mobile (uses One NZ network)
- Skinny (uses Spark network)
- Spark
